.CMC File

File extension cmc seems to be mainly related and used for a special data format used in the Comic Collector, a comic books management and cataloging platform by Collectorz.com.

How to open:

It is likely that you can work with .cmc files only using Comic Collector.

How to convert:

Comic Collector allows users to export their data, however, whenever this applies directly to .cmc files is not clear.